Perlite is used in potting compost mixes to improves aeration, draining and insulation. Perlite can be used to open up the structure of ready-mixed loam or peat-based composts. For soilless compost mixtures, use 3 or 4 parts of Sphagnum Moss Peat to 1 part of perlite (80/20).
Then, what plants need perlite?
While it does also help retain some water, perlite is primarily used to aerate compost. It excellent for creating a free-draining potting compost for plants that need good drainage, such as cacti and succulents. It can also help create an airy compost for seedlings.
Hereof, what are the benefits of perlite?
Overall Soil Benefits of Perlite
Perlite resists soil compaction and encourages aeration, even in limited growing spaces; Perlite’s larger surface area makes it ideal for indoor plants that require high humidity; Interestingly, it has also been used to great effect in plants that thrive in dry settings.
What are the disadvantages of perlite?
- Water can drain away quickly. …
- Being so lightweight, perlite can be blown away and tends to float in excess water.
- Nonrenewable resource. …
- Dust can create respiratory problems and eye irritation.
Placing fresh perlite on top of the soil around the plant or using it for a lightweight upper layer of growing medium creates a fresh, modern container arrangement.
Even though vermiculite and perlite are safe for vegetables, that doesn’t mean they are necessary for them. All plants need good drainage, but certain vegetables will do better with really loose and aerated soil. … Not only are they safe, they can be extremely helpful in keeping your plants healthy and productive.
Due to perlite’s large surface area, it is a good choice for plants that require levels of high humidity. Evaporation off its surface area creates higher humidity levels than those of vermiculite.
Perlite is a highly useful component of gardening for many reasons: It is physically stable and retains its shape, even in heavy or saturated soil. It doesn’t decompose, so it’s ideal for use in potting mixes for plants that are repotted infrequently (such as succulents and other houseplants).